Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive a priority list associated with preferred radio frequencies from a serving base station. In certain aspects, each radio frequency of the preferred radio frequencies associated with a first set of base station may operate on a first RAT. In certain other aspects, the apparatus may determine if the UE is able to reselect to the first RAT. In certain other aspects, the apparatus may perform a rank-based cell reselection procedure based on signal strength when the UE is unable to reselect to the first RAT.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive a priority list associated with preferred radio frequencies from a serving base station. In certain aspects, each radio frequency of the preferred radio frequencies associated with a first set of base station may operate on a first RAT. In certain other aspects, the apparatus may determine if the UE is able to reselect to the first RAT. In certain other aspects, the apparatus may perform a rank-based cell reselection procedure based on signal strength when the UE is unable to reselect to the first RAT.

Abstract: A multi-subscriber identity module (SIM) wireless communication device performing early camping in initial cell selection or reselection may detect an active communication on a modem stack associated with a first SIM, and a condition requiring initial cell selection/reselection on a modem stack associated with a second SIM. In response to receiving a paging message for the second SIM, the wireless communication device may trigger a radio resource to tune to a frequency of an identified target cell of the second SIM, receive a first portion of system information broadcast by the identified target cell, and determine whether initial cell selection/reselection to the identified target cell is complete. In response to determining that initial cell selection/reselection to the identified target cell is not complete, the wireless communication device may save the received paging message, and raise a priority level for the activity on the modem stack associated with the second SIM.

Abstract: A method for authenticating a circuit switched (CS) call on a virtual subscriber identity module (VSIM) includes: authenticating the VSIM for a packet switched (PS) call connection using authentication information obtained from a remote server through a software subscriber identity module (soft-SIM) connection to the remote server; initiating a call connection on a CS radio access technology (RAT) between the VSIM and a first communication network; and authenticating the VSIM CS call connection to the first communication network through the VSIM PS connection in response to an authentication request for the call connection on the CS RAT.

Abstract: A method for authenticating a circuit switched (CS) call on a virtual subscriber identity module (VSIM) includes: authenticating the VSIM for a packet switched (PS) call connection using authentication information obtained from a remote server through a software subscriber identity module (soft-SIM) connection to the remote server; initiating a call connection on a CS radio access technology (RAT) between the VSIM and a first communication network; and authenticating the VSIM CS call connection to the first communication network through the VSIM PS connection in response to an authentication request for the call connection on the CS RAT.

Abstract: A multi-subscriber identity module (SIM) wireless communication device performing early camping in initial cell selection or reselection may detect an active communication on a modem stack associated with a first SIM, and a condition requiring initial cell selection/reselection on a modem stack associated with a second SIM. In response to receiving a paging message for the second SIM, the wireless communication device may trigger a radio resource to tune to a frequency of an identified target cell of the second SIM, receive a first portion of system information broadcast by the identified target cell, and determine whether initial cell selection/reselection to the identified target cell is complete. In response to determining that initial cell selection/reselection to the identified target cell is not complete, the wireless communication device may save the received paging message, and raise a priority level for the activity on the modem stack associated with the second SIM.

Abstract: Disclosed are methods and apparatus for selecting a cell having a particular type of service, such as packet switched (PS) service. The methods and apparatus effect determination within a mobile device of signal strength for at least one cell and whether the at least one cell meets signal strength and path loss criteria based on the determined signal strength. A determination is then made whether the at least one cell supports PS for a PS only device, and a selection to receive service from or camp on the cell is then made when the at least one cell has been determined to support PS. By effecting such selection in PS only devices such as Class C devices, the mobile devices will have PS service for which they are designed and avoids cells having only circuit switched service that would provide no service for the PS only device.

Abstract: Embodiments include systems and methods for managing a tune away from a first network to a second network in a multi-subscription multi-standby communication device during an ongoing voice communication session on the first network. A device processor determine a timing of voice frames received from the first network. The device processor may perform a tune away to the second network at the beginning of a voice frame on the first network. In various embodiments, the device processor may use may use different tune-away patterns to reduce the impact of performing the tune away on the ongoing voice communication session.

Abstract: Access terminals are adapted to receive and transmit data during one or more frames in a multiframe. Power measurements for a neighboring cell can be scheduled during one or more frames not intended for power measurements. In some examples, the one or more frames not intended for power measurements can include an Idle frame and/or a Packet Timing Advance Control Channel (PTCCH) frame in a 52-frame multiframe structure, as well as an Idle frame and/or a Slow Associated Control Channel (SACCH) frame in a 26-frame multiframe structure. Some access terminals may be adapted for facilitating multiple subscriptions, and may operate at least substantially simultaneously in a Connected mode subscription and an Idle mode subscription. In such instances, a neighboring cell for which power measurements are performed may be associated with the Connected mode subscription and/or the Idle mode subscription. Other aspects, embodiments, and features are also claimed and described.

Abstract: A method for cell selection or cell re-selection by a wireless communication device in a Global System for Mobile Communications (GSM) network is described. The method includes obtaining signal-to-noise ratios (SNRs) associated with multiple cells. The method also includes delaying a camping decision until a broadcast control channel (BCCH) of a strong SNR cell is decoded. The SNR of the strong SNR cell is greater than the SNR of a high received signal strength indication (RSSI) cell. The method further includes camping on the strong SNR cell.

Abstract: A method for performing cell reselection by a wireless communication device is described. The method includes determining that the wireless communication device should perform reselection to a target cell from a serving cell. The method also includes determining that the wireless communication device does not have paging channel information of the target cell. The method further includes prioritizing reading paging channel information from a broadcast channel of the target cell over reading a paging channel of the serving cell.

Abstract: Apparatus and methods are disclosed to provide for a multi-SIM wireless user equipment configured for block-level, or slot-level tune-away operations enabling simultaneous communication with a plurality of channels. The first and second channels may correspond to different RANs, each of which the user equipment may subscribe to as corresponding to information in a plurality of SIMs at the user equipment. In other examples, the first and second channels may correspond to different cells within a single RAN. In either case, the tune-away operations disclosed provide for reduced data loss at the first channel and in some examples improved communication performance at the second channel. Other aspects, embodiments, and features are also claimed and described.

Abstract: Apparatus and methods are disclosed to provide for a multi-SIM wireless user equipment configured for block-level, or slot-level tune-away operations enabling simultaneous communication with a plurality of channels. The first and second channels may correspond to different RANs, each of which the user equipment may subscribe to as corresponding to information in a plurality of SIMs at the user equipment. In other examples, the first and second channels may correspond to different cells within a single RAN. In either case, the tune-away operations disclosed provide for reduced data loss at the first channel and in some examples improved communication performance at the second channel. Other aspects, embodiments, and features are also claimed and described.

Abstract: Access terminals are adapted to receive and transmit data during one or more frames in a multiframe. Power measurements for a neighboring cell can be scheduled during one or more frames not intended for power measurements. In some examples, the one or more frames not intended for power measurements can include an Idle frame and/or a Packet Timing Advance Control Channel (PTCCH) frame in a 52-frame multiframe structure, as well as an Idle frame and/or a Slow Associated Control Channel (SACCH) frame in a 26-frame multiframe structure. Some access terminals may be adapted for facilitating multiple subscriptions, and may operate at least substantially simultaneously in a Connected mode subscription and an Idle mode subscription. In such instances, a neighboring cell for which power measurements are performed may be associated with the Connected mode subscription and/or the Idle mode subscription. Other aspects, embodiments, and features are also claimed and described.